Effect of capacitor plates at different angle

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Discussion Overview

The discussion focuses on the behavior of electric field lines and capacitance in a capacitor with plates angled at 195 degrees. Participants explore whether the electric lines of force will follow an elliptical path similar to that of parallel plates and the potential for mapping these lines using an inverse cosine function. The conversation includes considerations of both analytical and numerical approaches to solving the problem.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant inquires if electric lines of forces will still follow an elliptical path with plates at 195 degrees, referencing the behavior at 180 degrees.
  • Another participant suggests that while the lines may not follow an exact elliptical path, they will not be entirely different due to the similarity of the setup.
  • There is uncertainty expressed regarding the existence of an analytic solution for the mapping of the electric field lines in this configuration.
  • Some participants propose numerical simulations as a potential method for approximating the solution.
  • One participant claims to know the correct transformation function for an analytical solution and expresses interest in discussing it in detail.
  • Another participant reiterates the uncertainty about the existence of an analytic solution, emphasizing that numerical methods could provide good approximations.

Areas of Agreement / Disagreement

Participants express differing views on the existence of an analytical solution, with some advocating for numerical simulations while others believe an analytical approach may be possible. The discussion remains unresolved regarding the exact behavior of the electric lines of force and the mapping function.

Contextual Notes

Participants have not reached a consensus on the analytical versus numerical approaches, and there are unresolved questions about the mapping function and the behavior of electric field lines at the specified angle.

FALI
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Hi,
I am interested to simulate the capacitor with plates having an angle of 195 degrees between them.
https://dl.dropboxusercontent.com/u/32847378/cp1.jpg
I know that if the angle between of plates is 180 deg, then electric lines of forces will follow a elliptical path and equipotential lines perpendicular to them as shown in image,
https://dl.dropboxusercontent.com/u/32847378/coplanar1.jpg
and for mapping inverse cosine function is used. i.e. W = inv. Cos (Z)
where W = x + i y , Z = u + i v
So, for my case
  1. Will the electric lines of forces still follow the elliptical path?
  2. Can they also be mapped using inverse cosine function or will there be a variation?
This will help me in finding the capacitance. Thanks in advance.
 
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FALI said:
Will the electric lines of forces still follow the elliptical path?
Not exactly, but they won't be completely different because your setup still looks similar.
FALI said:
Can they also be mapped using inverse cosine function or will there be a variation?
It is not clear if there is an analytic solution at all.
 
Hi,
Thanx for the reply. so, do you have any idea to solve that type of problem?
 
Numerical simulations?
 
Yes analytical solution. For that i know the correct tranformation (mapping) function. It would be nice to go into a detail of that problem
 
mfb said:
Numerical simulations?
FALI said:
Yes analytical solution.
Huh?

I don't know if there is an analytic solution. A numerical approach will certainly give a good approximation (as good as you like if you have enough computing power).
 

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